Improvement in feed-water heaters for steam-boilers



G. KRATZ.

FEED-WATER HEATERS FOR STEAM-Bonus.

No. 195,614. Patented sept.25,1s77.

O e Goe ooaoowo N.PETERS, PHDTO-LITHOGRAPHER, WASHINGTON, o c

UNITED STATES PATENT OFFICE.

GEORGE KRATZ, OF EVANSVILLE, INDIANA.

IMPROVEMENT lN FEED-WATER HEATERS FOR STEAM-BOILERS.

Specification forming part of Letters Patent N o. 195,614, dated September 25, 1877; application filed J August 20, 1877.

To all 'whom it may conce/m:

Be it known that I, GEORGE KEATZ, of Evansville, Vanderburg county, Indiana, have invented a new and useful Improvement in vFeed- Water Heaters for Steam Boilers, of which the following is a specification:

The object of my invention is to make an effective feed-water heater, occupying but a limited amount of space, and, therefore, especially applicable to portable engines; an object which 1 attain in the following manner, reference being had to the accompanying drawing, in which- Figure 1 is a View, showing the application of my improved feed-water heater to a portable engine and boiler; Figs. 2 and 3, longitudinal and transverse sections of the heater; and Fig. 4, a sectional plan view.

A is the boiler of a portable steam-engine; B the cylinder, D the feed-pump, and E the casing of the feed-water heater, which is of the long and narrow form shown, and is preferably made of a square section, as shown in Fig. 3. This, however, is not essential.

In one side of the casing E, near the upper end of the same, is formed an opening, x, communicat'ing with the exhaust-pipe a of the engine; and in the top of the said casing E is an opening, y, communicating with a pipe, b, leading to the smoke-stack of the boiler.

Within the casing E is a central partition, d, extending from the top to within a short distance of the bottom of the casing, so as to divide the interior of the latter into two chambers, F and F', communicating with each other at the bottom.

The opening cc communicates with the top of the chamber F, and the opening y with the top of the chamber F', so that exhaust steam from the engine enters the chamber F at the top, passes down through the same, thence into the chamber F', to the top of which it passes, finally escaping through the opening y.

In the chamber F are two vertical pipes,f j', and in the chamber F' two similar pipes, g g'. The pipes f' and q' are contained entirely within the casing E; but the pipes f and g extend through the lower end of the same, the pipef communicating with the feed-pump D, and the pipe g with the water-space of the boiler, near the bottom of the same.

The pipes f f', g g', and f' g' are connected together by means of ordinary U-couplings c', so that a continuous passage for the water through the steam-chambers F and F' is afforded.

As the casing E is a simple casting, and the pipes and couplings the ordinary ones of commerce, it will be evident that the heater can be constructed at a slight cost; that it can be readily put together and taken apart; and that any one of its parts, when worn or injured, can be removed and replaced by a new one without necessitating the discarding of any of the other parts.

The compactness of the heater is another advantage, which renders it especially applicable to portable steam-engines, which it is desired to render as compact and convenient as possible.

l claim as my invention- The withindescribed feedwater heater, consisting of a casing, E, having a steam inlet and outlet, and a partition, d, combined with water-pipes ff' and g g', connected together by U-couplings i, substantially as set forth. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE KRATZ.

Witnesses W. H. BEUNING, WM. KRATZ. 

